document.write( "Question 79841: Twenty-five feet of copper tubing weights 14 pounds. How much will 140 feet of the same tubing weigh? \n" ); document.write( "
Algebra.Com's Answer #57310 by checkley75(3666)\"\" \"About 
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25/14=140/x cross multiply
\n" ); document.write( "25x=14*140
\n" ); document.write( "25x=1960
\n" ); document.write( "x=1960/25
\n" ); document.write( "x=78.4 pounds for the 140 feet of copper tubing.
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